The cooling rate must be 30~50 ℃/h in integral heat treatment.The cooling rate depends on environmental temperature and convective heat transfer coefficient of metal flat.Analyzing method is presented in this paper.Then an easy way to control cooling rate is obtained by adjusting the velocity of the outside airflow.
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康文秀.红外检测在分析一维非稳态温度场中的应用[J].激光与红外,2011,41(5):534~536 KANG Wen-xiu. Application of thermography in analysis of the one dimensional unsteady-state temperature distribution[J]. LASER & INFRARED,2011,41(5):534~536